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Message-Id: <beebd7870d65558be4952934c04572fb061c891c.1539696960.git.ren_guo@c-sky.com>
Date:   Tue, 16 Oct 2018 22:08:22 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
        robh+dt@...nel.org, mark.rutland@....com,
        daniel.lezcano@...aro.org, will.deacon@....com, jhogan@...nel.org,
        paul.burton@...s.com, peterz@...radead.org, arnd@...db.de
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Guo Ren <ren_guo@...ky.com>
Subject: [PATCH V13 4/4] dt-bindings: interrupt-controller: C-SKY APB intc

 - Dt-bindings doc about C-SKY apb bus interrupt controller.

Signed-off-by: Guo Ren <ren_guo@...ky.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../interrupt-controller/csky,apb-intc.txt         | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
new file mode 100644
index 0000000..44286dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/csky,apb-intc.txt
@@ -0,0 +1,62 @@
+==============================
+C-SKY APB Interrupt Controller
+==============================
+
+C-SKY APB Interrupt Controller is a simple soc interrupt controller
+on the apb bus and we only use it as root irq controller.
+
+ - csky,apb-intc is used in a lot of csky fpgas and socs, it support 64 irq nums.
+ - csky,dual-apb-intc consists of 2 apb-intc and 128 irq nums supported.
+ - csky,gx6605s-intc is gx6605s soc internal irq interrupt controller, 64 irq nums.
+
+=============================
+intc node bindings definition
+=============================
+
+	Description: Describes APB interrupt controller
+
+	PROPERTIES
+
+	- compatible
+		Usage: required
+		Value type: <string>
+		Definition: must be "csky,apb-intc"
+				    "csky,dual-apb-intc"
+				    "csky,gx6605s-intc"
+	- #interrupt-cells
+		Usage: required
+		Value type: <u32>
+		Definition: must be <1>
+	- reg
+		Usage: required
+		Value type: <u32 u32>
+		Definition: <phyaddr size> in soc from cpu view
+	- interrupt-controller:
+		Usage: required
+	- csky,support-pulse-signal:
+		Usage: select
+		Description: to support pulse signal flag
+
+Examples:
+---------
+
+	intc: interrupt-controller@...000 {
+		compatible = "csky,apb-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
+
+	intc: interrupt-controller@...000 {
+		compatible = "csky,dual-apb-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
+
+	intc: interrupt-controller@...000 {
+		compatible = "csky,gx6605s-intc";
+		#interrupt-cells = <1>;
+		reg = <0x00500000 0x400>;
+		interrupt-controller;
+	};
-- 
2.7.4

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